The CyberPower BP48VL2U02 rack/tower convertible Extended Battery Module (EBM) extends battery runtimes during power outages and is designed for CyberPower UPS systems OL3KRM. The BP48VL2U02 takes 2U of rack space and can be installed in a rack or tower configuration to match the UPS form factor. Toolless front panel removal makes battery replacement Battery Module (EBM)</B><BR>Extends runtime by adding up to 10 EBMs.<BR><BR><B>Fast Charge Technology</B><BR>Allows UPS batteries to return to full capacity more rapidly by utilizing a built-in charger. Restores charge from 0-90% within four hours regardless of the number of EBMs.<BR><BR><B>Smart Battery Management</B><BR>Improves and extends the functional life of a UPS battery and reduces excessive heat during work cycles by using a three-cycle charging Batteries</B><BR>Keeps equipment running by eliminating downtime during UPS power DC Connectors</B><BR>Allow for daisy-chaining additional EBMs to a UPS DC Fuses</B><BR>Are located behind an easy-access AC Circuit Breaker</B><BR>Resets the UPS swiftly in case of an Configuration</B><BR>Allows for horizontal rack or vertical tower </B>This product can expose you to chemicals including Styrene (ABS), which is known to the State of California to cause cancer, and Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm